摘要
从菜田中硝态氮的动态变化、土壤氮素的矿化、硝态氮对地下水的影响等几方面概述了近年来国内外的研究进展,介绍了渗漏测定计法、土壤溶液提取器和15N同位素示踪技术等3种测定土壤氮素淋失的研究方法其应用前景;论述了影响菜田土壤氮素淋失的主要因素和降低菜田土壤氮素淋失的主要调控措施;提出了今后菜田土壤氮素淋失应加强的研究方向。
The advances in the researches on nitrogen leaching from vegetable soils, and effects of the leaching on underground water are reviewed in this paper. Meanwhile, lysimeter, soil solution distill utensil and 15N isotope trace technique for determining the leaching are also introduced. Some key factors influencing the leaching are discussed and some control measures are put forward.
出处
《生态环境》
CSCD
2004年第1期105-108,共4页
Ecology and Environmnet
基金
国家自然科学基金项目(40261007)
宁夏回族自治区自然科学基金项目(ZD3)
